"Bob" wrote in message
...
You most likely have what is know as a "split system heat pump" It cools
in
the summer and reverses in the winter for heat. It probably also has
electric heat coils installed in the attic. Check out this web page
http://www.randrac.com/xt500.htm for some info on the thermostat. With
that
type of system, it's a waste of money to keep adjusting the thermostat.
Decide on a comfortable temperature and leave it there.
The fact that the previous owner told you that gas needs to be added
periodically, means that the system has a Freon leak. This is against EPA
regulations, so get someone out there to find and repair the leak.

No its not.
Only has to deal with larger, known, commercial sized equipment leaks.

However, it is foolish to allow a known leak to exist. It only serves to
make the AC tech happy, and the homeowners wallet lighter.



"kam" wrote in message
ups.com...
We just moved into our condo recently . We donot know how to find out
what type of Furnace we have .The heat pump is located outside the
condo . The Air Handler unit and the water heater are on the attic .We
have a Trane XT-500 thermostat for which I have no manual to set the
temperatures . We have been just adjusting at random .
I am unable to get an online info on the thermostat .
Can someone help me how to identify the type of heat pump and
furnace we have .
Everything in the condo works on electricity . The previous owner told
me that some gas needs to be filled periodically . Please help .

Thanks ,
Kam